Frequencies for first 10,000 rows of econr variable in namcs2006 dataset :

during last |
  normal wk |
         of |
  practice, |
did phys do |
      email |
   consults |
w/patients? |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,636       86.36       86.36
        yes |        775        7.75       94.11
      blank |        589        5.89      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016